Height of Binary Tree
Transpose of Matrix
Match specific pattern
Right View of Binary Tree
N meetings in one room
Diameter of Binary Tree
Nuts and Bolts Problem
Binary Array Sorting
Special Stack
Number of occurrence
Trailing zeroes in factorial
Clone a linked list with next and random pointer
Intersection Point in Y Shapped Linked Lists
Given a linked list of 0s, 1s and 2s, sort it.
Merge two sorted linked lists
Maximum Difference
Reverse a linked list
Index of first 1 in a sorted array of 0’s and 1’s
Reverse words in a given string
Sort an array of 0s, 1s and 2s
Remove loop in Linked List
Queue using two Stacks
Rotten Oranges
Largest subarray with 0 sum
Distinct palindromic substrings
Detect Loop in linked list
Reverse a Linked List in groups of given size.
Factorials of large numbers
Min distance between two given nodes of a Binary Tree
Steps by Knight
Check if subtree
Level order traversal in spiral form
Non Repeating Character
Path in Matrix
Minimum Cost Path
Solve the Sudoku
Smallest window in a string containing all the characters of another string
Max rectangle
Longest Prefix Suffix
Egg Dropping Puzzle
Count type of Characters
Largest Number formed from an Array
Majority Element
Segregate Even and Odd numbers
Check Mirror in N-ary tree
Lowest Common Ancestor in a Binary Tree
Largest subarray of 0's and 1's
AVL Tree Insertion
Search in a Rotated Array
Reverse words in a given string
Left View of Binary Tree
Rat in a Maze Problem
Solve the Sudoku
Search in a matrix
Subarray with 0 sum
0 - 1 Knapsack Problem
Detect cycle in an undirected graph
Rotate and delete
Spirally traversing a matrix
Two water Jug problem
Finding the numbers
AVL Tree Deletion
Make a Distinct Digit Array
Smallest window in a string containing all the characters of another string
Longest Common Subsequence
Rotate a Linked List
Power of Numbers
Kadane's Algorithm
Largest number in K swaps
String formation from substring
Print a Binary Tree in Vertical Order
Longest Palindrome in a String
Nth Fibonacci Number
Stock buy and sell
Detect cycle in a directed graph
Add two numbers represented by linked lists
Two Repeated Elements
Thief trying to escape
a^b(Set 2)
Finding Number
LRU Cache
Next Greater Even Number
Check for BST
Total Decoding Messages
Word Boggle